Sanitary tile-spraying chamber.



H. D. LILLIBRIDGE.

SANITARY TILE `SPRAYING CHAMBER.

APPLICATlON FILED JULY28.1913.

l .223, 8 l atented Apr. 24, 1917.

a SHEETS-SHEET 1.

H. D. LILLIBRIDGE.

SANITARY TILE SPRAYING CHAMBER.

APPLICATION FILED 1uLY28.1913.

Patented Apr. 24., 1917.

3 SHEETS-SHEET 2.

5 ww nto@ HARRY 0. L /L L hip/06E H. D`l ULLEBRIDGE. SANITARY TILElSPRAYNG CHAMBER.

APPucATloN FILED muze. 1913.

Lgwo Patented Apr.24,1917.

3 SHEETS-SHEET 3- 5 man/tofu. Manaus/waar 7 ports of the room,

: D. LILLIBRIDGE, OF

znNsvmLn, OHIO,

'ruine COMPANY, LTD., or nnw YORK n.. Y.,

assronon `To nazcan namaos'c a.; CORPORATION or from SANITARYTILESPRAYING CHAMBER.

' specmcatien of Letters Patent.

intesa am, afa, agora Application mea July as, reis; seran no. 181,501.

new and useful Sanitary Tile-Spraying Chamber, of which the following isa speciiication.

This invention is a sanitary spraying chamberv embodying means for I)recludingY workmen engaged in, or adjacent to, said chamber frominhaling air which iS filled with. certain matter more or lessinjurious'to health, which matter may be in the nature of a glazingsolution'to be applied in the form of a spray to ceramic tiles or otherproducts for decorative effects and other purposes.

It is well known that certain classes of labor subjects or exposes theworkmen to the risk of inhaling air laden with fumes and vaporsdeleterious to recent years sanitary regulations have been adopted andenforced whereby workmen are rendered immune to a certain extent whileengaged in such operations.

The present invention is useful, more particularly, in the ceramicindustry wherein itis a common practice to apply coloring matter totiles, etc., by spraying such matter upon the surfaces thereof. Thisoperation when conducted in a factory room, wherein a number of personsare engaged at work, exposes all of them to the injurious effects of amore or less'poisonous matter, particu'- larly in case the air of theroom becomes charged with the sprayed liquid. This objection is notovercome even though the room is well ventilated, nor is it obviated byexhausting the air ventilation, for the reason that' the compressed airemployed to convert' the [liquid into a spray is under considerablepressure, so that the liquid spray is thrown: into all and furthermore,the spray is thrown with such force against the tiles or other objectsthat some of it rebounds i and strikes the operators face and person;

According to this invention, means are provided for absorbing all thesprayed matter which other work under treatment in suchl'mane ner thatthe waste spray cannot charge" or fill the air within the room. Forrthevbestfre.L sults, it is found advisable' `to conducti room, and aroundbetween 'the spray absorbing.

health, so that in.

r it is'preferred a' background Of glass,

by. the act `of artificial following at does not adhere tothe'tilesforspraying operation in a separate Y room closed against communicationwith another room or rooms except to receive the necessary supply of airtherefrom, and. toexhaust-the air from such` spraying'room by artificialmeans, to the end air will be established through the spraying theworkman andi the the sprayznot` taken up by the absorbing medium landwhich may rebound more or less fromthe tiles or other objects will becaughtup by,A and carried oii' with,the air current.

lt -is to be understood spraying is conduotedby work, whereby that thework of placing the object medium and the'workm'an, and-by directingtheY Spray toward theV Object and said absorbing medium, whereby anyspray which passes be ond the obiect. will. be taken up by said asorbing medium. Various substances may be used as the absorbing medium,such as afsuspended wet fabric, but for eliiciency and economy to use athin running liquid, such as water, the flowl of which 1s continuous.In' a practical form,

or the like, is employed, and ai horizontal perforatedpipe is ositionedat or near the top'edge 'of this ackground, suitable connections beingmade with a source of liquid supply, whereby a relatively thin sheet orfilm of continuously flowing liquid is 'maintained between the work andthe background. rlhe liquid spray thrown toward or against thisabsorbing medium is at once taken up by or dissolved in the liquid, theflowing liquid being collected by a suitable trough orv gutter havingconnections with a vsewer or other outlet.

ther features of advantages 4thereof will appeardetailed description.

In the. drawings, 3

Figure 1 is a sectional plan view illustrating a spraying chamberequipped with means embodying the present invention.

Fig.-2 is a vertical section Von the line 24e-2 of Fig. 1.

from the lm or sheet of Fig. 3 is a vertical section-taken in a plane At angles to Fig. 2,.' showing the hood and other parts elevation;

Fig'. 4 is a side view-of one'corn'er of the"y v illustrating aventilator byswhich air isadmitted to the spraying spraying chamber,

chamber Ifrom another apartmg'ant.-vvv

I Av designates a chamber' ttor' comparti/nent "within which theoperation of spraying'tlles,

' A.objects of'ceramic ware, or any other work Splffwing` ma be carriedon. As shown, the chamber A lsladjacent to other rooms or apartments aa', (one or more)A and the walls b of said chamber-'are provided withwindows b -for` the purpose of lighting this chamber, access to which isobtained through .a door b?. Thexiloor c of the spraying room ispreferably composed of concrete, tiles or other non-absorbent material,and the upper surface of this floor is inclined toward a 'drain c' fromwhich leads a waste pipe c2, the latter being connected with a wastedrain B adapted todischarge waste liquid matter into a sewer'ori'otherwise.` -The sprayingl lroom is equipped with means yforconducting the s aymgfoperation; as shown a stan or-ta le all isprovided in one corner, and

uponthis stand is positioned a compressed air tank C equipped with asuitable gage ol. Connected to the tank is a supply ipe d2 leadin froman air compressor, so t at the vtank may be charged with air to thedesired pressure. The'tank is shown as havin lan outlet pipe C" to whichmay be connecte a hose leading toa spraying device, the latterbeing-supplied with a liquid coloring matter in the usual way,- so thatthe air will convert the liquid into a spray adapted to be thrownagainst the surface lo a tile or other object to be treated. The work tobe decorated or otherwise treated may be supported in any suitablelway'within the spraying chamber. I may provide a rack of spe- 'cial designvfor holdin the pieces of ceramic tile, but the work ho ding means shownin `Figs. 2 and 3 consists of a'table- E provided with a rotatable tope. It is obvious that the'work is placed upon the rotatable top so as tobe supported in front of the workman, 'thus making it convenient for theoperator to directthe spray against the objects restin'g upon thetop e,it being possible to rotate the top in-order to present the edges or allsides of the object to the spray. For the convenience of the operatorthe spraying cham- Positioned within the spraying chamber bermay beequipped 'with sanitaryvplumbing, such 'asthe basin -F and water faucetf.

4is a hood G,: the same being preferably of arched form in longitudinalsection and substantially rectangular form in plan. This hood isdirectlyv over the work supporting rackor table, and beneath the lhoodis carried on theoperation of sprayngthe color- Iingl'natter. upon thetiles or-other objects. The hood is supportedfby any suitable meanswithin thespraying chamber, and for this Figi'isla'enlareddtail viewshowin -meansforspraying Work supported on the rack or purpose Ihave-shown said hood as being suspended by cords or chains g from the 'lg'of the chamber. The hood is composed, preferably,fof sheet metal, suchas sheet steel, and if desired the surfaces 4of the metal maybe'enameled' or otherwise fmby washing 1t. It is preferred'to employehood the sides and ends of which are provided with transparent panesqgof glass or other material, said panes of transparent ma- 'vided in thehood and being attached firmly thereto by appropriate means. Within the.-'h'ood are providedsuitable lighting means, such as the incandescentelectric lamps G.

4The transparent panes of glass and the electric lamps afford means forilluminating the table below lthe hood. Obviously, illuminating meansother' than the electric lamps G may be employed, and if desired theinterior of the room may be lighted by one or more other inv order toexhaust the air from the room,

andv in Fig. 3 said exhausting means .is

from several directions toward the hood so asl to envelop the operatorand the work in a zone of a1r, for the purpose of carrying away from theoperator all the spray which may rebound from the tiles or otherobjects.

The. ventilators may be of any suitable construction, but it ispreferred to employ a ventilator with pivoted blades i. Said blades areso hung that the ventilator will open by the draft'of air drawn throughthe room by the action of fan H', but should a draft of a1r take placein an opposite direction the blades of the ventilator will automaticallyclose, thus precluding air laden with colorlng matter from flowmg out ofthe room and through the ventilators into an adjacent compartment a ora", whereby the workmen engaged 1n rooms other than the sprayingroomwlll not be exposed to the spray laden air froinsaid spraymg room.

jished so as to produce a surface easily cleaned Vteri'al being inserted1n suitable openings pro- 100 represented by dotted lines as a fan Orl l[may be em loyed.

suitable wi th and height, and it is sup- `a filter K J Adesignates abackground extendin downwardly from the suspended hood i positioned soas to intercept the spray from the spraying device thrown toward or uponthe objects whichrest on the work table E. This background is composed,preferably, of wired glass in order to aHord the desired illumination ofthe room, but, obviously, any other material suitable for the purposeThe background is of in a ixed position by appropriate means, such asthe bracket j, fastened to one wall of the room, see Fig 2.' .The upperedge of the background is positioned preferably within a lower edge ofhood G, substantially at the rear thereof.

Coperating with the background is a ipe K for supplying water to onesurface of the background, said pipe being positioned preferably at ornear the upper edge of background J. `The pipe` extends horiportedzontally for substantially the full lengthy of a the background, asshown in Fig. l, and to this pipe is connected a supply pipe la whichleads outside of the spraying room so that the pipe k will supply thefaucets f to one or more basins F. It is preferred to employ inconnection with a supply pipe la, and this filter is provided with aby-pass 2. rl`he filter is in the line of flow of the water to besupplied to pipe K so as to remove sediment from the water, and thebypass enables the water to be sent through the filter for the purposeof flushing the latter.

The distributing pipe K is preferably provided with openings arranged todirect streams of water against the front surface of the background,thereby producing a film or curtain of continuously iiowing water. Saidfilm or curtain operates primarily to absorb the coloring matter of thespray which eludes lor passes the object under treatment, but' the filmor vcurtain acts, also, to flush the surface of the background andthereby wash away anv coloring matter which may adhere to saidbackground.

Below the background'is positioned a collecting trough water supplied tothe background by the distributingpipe. This ycollecting trough is openat the to side and extends the full length of the background, saidtrough being positioned centrally with.respect to the background. Adrain pipe Z is connected to the collecting trough communicates withwaste viding for the readyescape of which forms the lm coloring mattervwhich is?" carried ,j o j the water f.. thereby.

foregoing description taken i in j connection with the drawingsx butmaybe 'summarized as follows: Compressed air-is supplied to L into whichflows the spraying means beyond or gutter and this pipe pipe B, thuspro. l j

` bodying a chamber,l

tioned within the chamber whereby the work of spraying objects-'sperformed, means for ""lcirculating air or @main-andrea,

The operation will be apparent the l va liquid .curtain adapted objectsunder treatment, said air liquid -fiowing over the surface thereof. The

door to the spraying chamber is closed, and

fan H is set in motion, thus drawing air through ventilators l andcausing the air to flow in the required volume around the operator, butthe spray should in all instances be directed toward the background. The

sheet or curtain of water yflowing over the` background absorbs anycoloring matter. in the spray which escapes the objects, but the airbeing supplied under pressure, some of the spray strikes against theobjects and rebounds toward the workman. rlhis rebounding spray iscaught up by the current of air dowing around the workman and upwardlyinto the hood.

lt will be understood that the invention provides means for renderingthe workman immune to the effect of the sprayed coloring matter, for`the reason that the spray which escapes the objects will becomeabsorbed by the sheet or film of flowing water, and the spray thatrebounds or flies off the objects is caught up by the air flowingthrough the spray room and upwardly into the hood. l Various forms ofapparatus may be employed for carrying into practice the method. orprocess herein disclosed, said process be'- ing made the subject matterof a separate application filed by me on even date herewith.

As shown in Fig. 3, pipes h* may lead from pipe K to trough L forflushing the latter independently of the spray, the flow ofwater throughsaid pipes h4 being controlled by valves h5.

yHaving thus fully described the invention, what I claim as new, anddesire to secure by Letters Patent is:

1. An apparatus of the class described embodying a chamber, sprayingmeans positioned within said chamber whereby the work of sprayingobjects is to be performed, means .for circulating air through thechamber, an absorbing medium positioned within said chamber to collector take up deleterious sprayed matter projected by the the work, andmeans for withdrawing airl .from the chamber and adjacent said absorbingmedium.

2. An apparatus of the class described emspraying means posithrough thechamber, and means for establishing within. such chamber to absorbdeleterious sprayed' matter vprojected@beyond the circulating tank C,and the spray device is connected with the tank and with a sprayingobjects with coloring matter is conducted, means for producing acontinu-` ously moving film or sheet of liquid in such relation to thework as to intercept the sprayed matter which passes said objects, andmeans for circulating air through the chamber and withdrawing airtherefrom at a point adjacent the moving film or sheet of liquid forcarrying olf the sprayed coloring matter rebounding from the Work undertreatment.

5. An apparatus of the class describedembodying a chamber' within whichis to be conducted-the operation of sprayingv objects, means forproducin a continuously moving film or. sheet of liquid in a position tointercept the spray passing such objects, and means for circulating airthrough said cham-K ber and withdrawing it adjacent the film or sheet soas to envelop the field within which is conducted the operation ofspraying the objects under treatment whereby the operator` within thechamber is enabled to perform the work without danger of inhaling apoisonous sprayed coloring matter.

6. An apparatus of the class described embodying a chamber, sprayingmeans within said chamber, a background positioned within said chamber,means for vestablishing the flow of a sheet or lm of liquid over thebackground whereby the sheet orv .film of liquid is adapted to interceptthe spray passing the work to be treated, and means for withdrawing airfrom the chamber adjacent the liquid sheet or film.

7. An apparatus of the class described embodying a chamber, sprayingmeans whereby a spraying operation is conducted within the chamber, abackground separate from the walls of the chamber andpositioned withinthe same, a liquid collecting member at the lower edge of saidbackground, means for supplying a sheet or film of liquidadapted to flowover the surface of the background and into said collecting member, andmeans for withdrawing air from the chamber at apoint adjacent thesheetor iilm of liquid.

8. An apparatus of the class described embodying a chamber within whicha sprayvtreatment. f

ing operation Ais to be conducted, a spraying device, a backgroundseparate from the walls of the chamber and positioned within bodying achamber, spraying means within e said chamber, means for admitting airto the lower part of the chamber, an exhaust Hue leading from the upperpart ofl said chamber, and spray-absorbing means positioned within saidchamber and adjacent the inlet to the exhaust flue for' intercepting aspray passing beyond the object under 10.I An apparatus of the classdescribed embodylng a chamber, a water curtain therein, and an exhausthood the inlet to which is in the immediate proximity to said watercurtain.

11. An apparatus of the class described embodying a chamber, sprayingmeans po-.

the spraymg operation is to be conducted,

means for exhausting air from said chamber through said hood, and meansfor establish-y i ing a iioW of a sheet or ilm of spray absorb' ingliquid adjacent to the hood and in the pathof a spray which may pass bythe object under treatment.

14. An apparatus ofthe class described embodying a chamber, an exhausthood pov sitioned therein, a background beneath the edge of the hood,and means for supplying a l sheet or film of 11 uid over the surface ofthe background, the mlet to said exhaust hood being in proximity to thesheet or ilm.

15. An apparatus of the class described embodying a chamber, an exhausthood positioned therein, an exhaust connection with said hood, abackground extending downwardly from the edge of the hood, and a liquidsupply pipe positioned in front of said background and under. said hood.

16. An apparatus of the class described embodying a chamber, a hoodlpositioned therein, an exhaust connection for said hood, a backgroundextending dow'nwardly from the edge of the hood, a collecting member atthe lower part of said background, and means positioned under the hoodfor su plying liquid to flow in front of said bac ground and thence intosaid collecting mem- 17. An apparatus of the class described embodying achamber the walls of which are provided with ventilators adapted tosupply air to the interior of the room, ahood beneath which `theoperation of spraying objects with coloring matter is to be conducted,means for exhausting air from the chamber and through said hood, andmeans whereby a ilm or sheet of liquid is maintained adjacent to saidhood and in the path of the spray.

18. An apparatus of the class described embodyin a chamber equipped withmeans for spraying objects with coloring matter,

,ventilators positioned in the wallsof said room for admitting airthereto, means for,

establishing the flow of a sheet or film of liquid within said chamber,a hood positioned within the chamber and beneath which the sprayingoperation is to be conducted, said hood being adjacent said iilm orsheet, ard means for exhausting air from the chamber and through thehood, whereby the air is withdrawn from the chamber adjacent said filmor sheet.

ln testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

HARRY D. LILLIBRIDGE.

Witnesses:

ARTHUR J. PRESTON, C. W. SMrrmr.

